All is well...after over night observation he came home...better than ever. Thank goodness no surgery was required. The worst part is that they missed out on a planned end-of-summer camping trip. It is a blessing that this didn't occur while they were out in the woods. Thanks for all good wishes. Having had the "air" treatment during a colonoscopy, I know how uncomfortable that bloating feeling can be.
They do live near-by so we visit often.